SKU: 77323357338

53mm tamper base knock convex

Sale price$17.84 Regular price$19.82
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

53mm tamper base knock convexJoeFrex 53 mm Tamper Base KNOCK CONVEX All KNOCK CONVEX bottom parts have a slightly convex pressing surface to compress the coffee grounds. Why the name Knock? After pressing the coffee grounds for the first time, lightly tap on the side of the filter holder to dislodge any remaining grounds. Subsequently, it can be pressed again. To avoid using the base of the tamper or the wooden handle for this light tap on the filter holder, risking damage to

JoeFrex - 53 mm Tamper Base KNOCK-CONVEX

All KNOCK CONVEX bottom parts have a slightly convex pressing surface to compress the coffee grounds.

Why the name Knock?

After pressing the coffee grounds for the first time, lightly tap on the side of the filter holder to dislodge any remaining grounds. Subsequently, it can be pressed again. To avoid using the base of the tamper or the wooden handle for this light tap on the filter holder, risking damage to both the tamper and the filter holder arm, you can now tap with the integrated silicone ring in the base. This idea is patented by JoeFrex.

Why the name CONVEX?

Normally, the surface of the coffee grounds pressed into the filter holder doesn't play a significant role; whether it's flat or concave, there's enough space between the coffee surface and the dispensing group so that the water can be evenly distributed over the coffee grounds and pass through them evenly. However, if a flat filter is used in the arm, or if much more than 7g (for a one-cup filter) or 14g (for a two-cup filter) is used, the space between the coffee grounds and the dispensing group may be too small for optimal water distribution. For this purpose, the Convex Tamper Base can be used, as it leaves a cavity in the middle of the pressed coffee, for better water distribution.

Shipping Notes
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Exchange/Return Notes
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SKU: 77323357338

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Michael S.
Boise, US
★★★★★ 5
Heel Fisures
Material Type: Black - 3 Pairs, Size: X-Large
Fantastic product. Worked well beyond my expectations.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
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Nathan Tucker
Bozeman, US
★★★★★ 4
X-Large is about a size 12-13 shoe size foot USA.
Material Type: Black - 3 Pairs, Size: X-Large
I love them they work fantastic. I am a big guy with swollen feet. Wear size 12 to 13 USA Shoes. They fit me just fine not tight. My feet felt good after wearing them for two days. Some dry skin pulled off with them and it says to wash by hand. I dont know about the durability but I am hoping to get about 5 uses per pair. Before they become unusable.
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Reviewed in the United States on February 7, 2026
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Y K
Chelsea, US
★★★★★ 5
Comfortable
Material Type: Black - 2 Pairs, Size: X-Large, Material Type: Black - 2 Pairs, Size: X-Large
I have very sensitive skin, so I usually need to wear socks at all times. These are especially comfortable because they don’t cover the toes, which helps with temperature control. The material is well-balanced—not too thick or too thin—and has just the right amount of stretch. I also appreciate the large traction area, which adds stability. Another plus is that they are completely fragrance-free.
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Reviewed in the United States on April 21, 2026
P
Verified Purchase
Pudatane
Alexandria, US
★★★★★ 5
Great Heel Socks
Material Type: Black - 3 Pairs, Size: Large
I don't know how they work but it's wonderful. I've had rough heel problems for a long time. I wear these everyday and my heels are not rough. They're not baby bottom smooth, but they are not ever going to be. These heel socks also oncce they are properly positioned snap onto the heel. Properly positioning them is easy when you put them on your foot with the heel cup in the correct orientation.
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Reviewed in the United States on April 14, 2026
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beachx
Draper, US
★★★★★ 3
Too small
Material Type: Gray - 3 Pairs, Size: X-Large
Too tight! Even size large used for a man with smaller feet is too tight. Also, no instructions for use or care.
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Reviewed in the United States on May 21, 2026

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